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MC2250 Mullite Rod, Silicate Ceramic Rod

  • Catalog No. MC2250
  • Color Off-white
  • Shape Heater Plate
  • Thermal Conductivity 6 W/m·K
  • Dielectric Strength 9.8 ac-kv/mm
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Mullite Rod Description

Mullite rod is made of silicate ceramic mullite (3Al2O32SiO2). Mullite is a refractory oxide material combining low thermal expansion, good mechanical strength, and resilience at elevated temperatures. Raw mullite materials are easily obtained and reasonably priced. It is certainly one of the most important oxide materials for both conventional and advanced ceramics. Its workability allows an extensive range and flexibility in fabrication. It is well suited for the casting of special shapes and larger tubes.

Advanced Ceramic Materials (ACM) is a trusted supplier of mullite ceramic rods.

Mullite Rod Specifications

Chemistry Content
Al2O3 SiO2 TiO2 Fe2O3 CaO·MgO K2ONa2O and others
62.50% 34.50% 0.10% 0.80% 0.90% 1.30%

 

Mechanical Units of Measure SI/Metric (Imperial)
Density gm/cc (lb/ft3) 2.8 -175
Porosity % (%) 0 0
Color off-white off-white
Flexural Strength MPa (lb/in2x103) 180 -26
Elastic Modulus GPa (lb/in2x106) 151 -22
Shear Modulus GPa (lb/in2x106)
Bulk Modulus GPa (lb/in2x106)
Compressive Strength MPa (lb/in2x103) 1310 -190
Hardness Kg/mm2 1070
Fracture Toughness KIC MPa m1/2 2
Maximum Use Temperature °C (°F) 1650 -3000
(no load)
Thermal      
Thermal Conductivity W/m?°K (BTU?in/ft2?hr °F) 6 -42
Coefficient of Thermal Expansion 10–6/°C (10–6/°F) 5.4 -3
Electrical      
Dielectric Strength ac-kv/mm (volts/mil) 9.8 -245
Dielectric Constant @ 1 MHz 5.8 5.8
Dissipation Factor @ 1 kHz 0.003 0.003
Volume Resistivity ohm cm >1013 >1013

 

Mullite Rod Applications

Mullite ceramic rods have a wide variety of applications:

- Machining of components and toolings
- Protection tubes
- Realization of prototypes
- Manufacturing of small ceramic series
- Coil cores
- Electrical insulator
- Template of assembly
- Injectors, nozzles
- Vacuum parts
- Thermal insulators, inductive insulators
- Template of brazing and welding
- Sensors

 
Related Documents
Advanced Ceramic Materials Brochure
Technical brochure for Advanced Ceramic Materials, all grades. Revision March 2023.
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